Riveting-machine



(No Model.)

B. A. CARL. RIVETING MACHINE.

No. 424,668. Patented Apr. 1,1890.

WITNESSES WW/ UNITED STATES PATENT OFFICE.

REINHOLD A. CARL, OF HEARNE, TEXAS.

RIVETlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 424,668, dated April 1,l890.

Application filed January 3, 1890.

T0 at whom it may concern:

Be it known that I, REINHOLD A. CARL, of Hearne,i11 the county ofRobertson and State of Texas, have invented a new and ImprovedRiveting-Machine, of which the following is a full, clear, and exactdescription.

My invention relates to improvements in riveting-machines; and theobject of my invention is to provide a simple, strong, durable, andefficient machine for attaching metal rivets to leather or othermaterial to fasten said materials together.

To this end my invention consists of certain features of constructionand combinations of parts, that will be hereinafter fully described, andspecifically pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters and numerals of referenceindicate corresponding parts in all the figures.

Figure 1 is a perspective view of the machine; Fig. 2, a verticalsection of the rivetdriving mechanism, and Fig. 3 a vertical section ofthe rivet-heading mechanism.

The flat base A, upon which the machine rests, the upright standard orcolumn B, attached thereto, the oblongflat plate C, attached to thecolumn B, and the curved arm D, attached to the top of the plate 0,constitute the frame of the machine.

At the rear of the machine, and ext-ending upwardly upon each side ofthe arm D through slots 0. in the plate 0, are vertical connecting rodsE and F, the rod E being pivoted at the lower end to the treadle-lever Hby the pin Z) and at the top to the driving-lever J, and the rod F beingpivoted at the bottom to the treadle-lever K and at the top to the leverL. The treadle-levers H and K are pivoted between ears upon the backside of the column B, the ears being indicated in the drawings by dottedlines, and are then curved upwardly and extend through slots in thecolumn B to the front of the column, where they are provided withtreadles H and K to receive the foot of the operator and actuate themachine, the lever K being arranged to give greater power and more playthan the lever H, as it is by means of this lever that the rivets areheaded. The levers J and L have a double Serial No.335fl38. (N0 model.)

duce the ends of the levers, and which will strike against the pins 7band 11 of the drivingrods M and N and limit the forward movement of thelevers, the reduced ends entering the upper split ends of thedriving-rods M and N, where they are retained by the pins h and 2',which pass through said rods, respectively, near the upper ends thereof.

The rods M and N work vertically in the cross-head O at the outer end ofthe arm D. The rod M is hollow, except at the lower end .7 which issolid, and the rod N is solid throughout, but may be hollow with a solidlower end like the rod M. The rod M at the lower end is provided with asleeve Z, which is attached to the rod by the rivet m, which moves inaslot nin the front of the rod M, so that the sleeve may move upon therod or the rod within the sleeve, as the case may be. Attached to therear of the sleeve Z is an angular frame 1), which extends inwardly anddownwardly, and the lower end of which is provided with twoforwardly-extendin g sp rin garms 0', which support the separablerivetholder S, the arms 1' being of a length that will bring therivet-holder directly beneath the driving-rod M. The rivetholder S issplit vertically from front to rear, and is provided with a centralvertical recess to receive the stem of a rivet, the upper part of saidrecess being flaring, as shown, to receive the head of the rivet.

The rivet-holder S is supported by the arms r and frame 19, so that itwill rest normally just above the upright P, which is of tubular form,and is attached to the frame-plate C, so as to be in a vertical linewith the drivingrod M. The upright P is of about the same diameter as anordinary rivet-burr, and is closed at the top, except for a centralperforation, which receives the point of a rivet when it is driven home,as will be explained hereinafter. The upright P is provided with asleeve P, which extends normally a little above the top of the upright,and is supported in this position by a spiral spring 25, which is coiledaround the upright below the sleeve, the upper end bearing against thesleeve and the lower end resting upon the plate 0.

At the side of the upright P and in vertical line with the rod N is anupright R, which also rests upon the plate 0, and is provided with aslightly-dishing solid metal top R, upon which the rivet is headed.

The machine is operated as follows: The rivet-holder S, the frame 19, towhich it is attached, and the sleeve Z, connected therewith, are raisedvertically, the sleeve sliding down upon the driving-rod M. A rivet 3 isthen in serted in the rivet-holder S and the rivet-burr 4 in the top ofthe sleeve 'P. The hole in the rivet-burr will thus be directly abovethe perforation in the top of the upright P. A piece of leather 5 to beriveted is then placed between the rivet-holder S and the top of theupright P. The operator then presses with the foot upon the treadle H.This depresses the front end of the treadle-lever H and raises the rearleather 5, with the rivet and burr thereon, is

then placed upon the upright R with the rivet resting upon the metal topR. The operator then steps upon the treadle K, which operatesconnecting-levers like those already described and forces the rod N uponthe rivet, thus heading the same and attaching it to the burr. The rearends of the treadlelevers H and K and the lower ends of theconnectingrods E and F should be sufficiently'heavy to drop back intoplace and raise the rods M and N when the pressure is removed from thetreadles H and K. The leather 5, with the rivet and burr attached, isthen pulled from between the rivet-holder S and sleeve P.

The'rivet used in this machine has a flat head, a round stem, and asharp point, and I claim the same as my invention, and am about to applyfor Letters. Patent therefor.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. Ariveting-machine consisting, essentially,

of the upright frame A B O D, having the' cross-head O in the upperfront part thereof,

the vertical driving-rods M and N, adapted to as shown, the upright R,with solid top R, at-

tached to the frame below the rod N, and means, as pivoted levers J andL at the top of the machine, connecting-rods E and F, and treadle-leversH and K, for actuating the driv ing-rods M and N, substantially asdescribed.

2. In a riveting-machine, the combination, with the frame of themachine, and with the driving-rods M and N, adapted to move in thecross-head 0 thereof, of the leversJ and L, pivoted to the top of theframe, having re duced ends J and L to engage the split ends of thedriving-rods, and having connectingrods E and F and treadle-levers H andK, for

actuating the same and imparting motion to said driving-rods,substantially as described.

REINHOLD A. CARL.

W itnesses:

W. P. FERGUSON, H. K. DAVIS.

